291223280

素因数分解:

$2^4\times 5^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1\times {\mathrm{1061}}^1$

素因数の和:1194

約数の個数: 80

約数和(自身を含む): 701633664

約数和(自身を除く): 410410384

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 47, 73, 80, 94, 146, 188, 235, 292, 365, 376, 470, 584, 730, 752, 940, 1061, 1168, 1460, 1880, 2122, 2920, 3431, 3760, 4244, 5305, 5840, 6862, 8488, 10610, 13724, 16976, 17155, 21220, 27448, 34310, 42440, 49867, 54896, 68620, 77453, 84880, 99734, 137240, 154906, 199468, 249335, 274480, 309812, 387265, 398936, 498670, 619624, 774530, 797872, 997340, 1239248, 1549060, 1994680, 3098120, 3640291, 3989360, 6196240, 7280582, 14561164, 18201455, 29122328, 36402910, 58244656, 72805820, 145611640, 291223280]

約数ペア:

[(1, 291223280), (2, 145611640), (4, 72805820), (5, 58244656), (8, 36402910), (10, 29122328), (16, 18201455), (20, 14561164), (40, 7280582), (47, 6196240), (73, 3989360), (80, 3640291), (94, 3098120), (146, 1994680), (188, 1549060), (235, 1239248), (292, 997340), (365, 797872), (376, 774530), (470, 619624), (584, 498670), (730, 398936), (752, 387265), (940, 309812), (1061, 274480), (1168, 249335), (1460, 199468), (1880, 154906), (2122, 137240), (2920, 99734), (3431, 84880), (3760, 77453), (4244, 68620), (5305, 54896), (5840, 49867), (6862, 42440), (8488, 34310), (10610, 27448), (13724, 21220), (16976, 17155)]